public static CharSet Intersection(CharSet a, CharSet b)
{
CharSet c = new CharSet();
foreach (Char ch in a.m_set)
if (b.m_set.Contains(ch))
c.m_set.Add(ch);
c.m_set.Sort();
return c;
}
List<bool> ContentData(CharSet perAlphaCon)
{
List<bool> ret = new List<bool>();
foreach(char ch in Value.ToCharArray())
ret.AddRange(EncodeSingleChar(ch, perAlphaCon));
return ret;
}
protected virtual List<bool> EncodeSingleChar(char p, CharSet perAlphaCon)
{
List<bool> ret = new List<bool>();
IStringType myType = m_type.GetFinalType() as IStringType;
if (myType == null)
throw new Exception("Internal Error");
int min;
int max;
List<char> tmp = new List<char>(myType.AllowedCharSet);
int charIndex = tmp.IndexOf(p);
min = 0;
max = tmp.Count - 1;
if (perAlphaCon != null)
{
max = perAlphaCon.m_set.Count - 1;
charIndex = perAlphaCon.m_set.IndexOf(p);
}
if (min == max)
return ret;
ret.AddRange(PER.EncodeConstraintWholeNumber(charIndex, min, max));
return ret;
}
public List<bool> EncodeAsUnCostraint(CharSet perAlphaCon)
{
List<bool> ret = new List<bool>();
if (Size <= 0x7F)
{
ret.AddRange(PER.EncodeConstraintWholeNumber(Size, 0, 0xFF));
ret.AddRange(ContentData(perAlphaCon));
return ret;
}
if (Size <= 0x3FFF)
{
ret.Add(true);
ret.AddRange(PER.EncodeConstraintWholeNumber(Size, 0, 0x7FFF));
ret.AddRange(ContentData(perAlphaCon));
return ret;
}
long nCount = Size;
int curBlockSize = 0;
List<char> items = new List<char>(Value.ToCharArray());
int curItem = 0;
while (nCount >= 0x4000)
{
if (nCount >= 0x10000)
{
curBlockSize = 0x10000;
ret.AddRange(PER.EncodeConstraintWholeNumber(0xC4, 0, 0xFF));
}
else if (nCount >= 0xC000)
{
curBlockSize = 0xC000;
ret.AddRange(PER.EncodeConstraintWholeNumber(0xC3, 0, 0xFF));
}
else if (nCount >= 0x8000)
{
curBlockSize = 0x8000;
ret.AddRange(PER.EncodeConstraintWholeNumber(0xC2, 0, 0xFF));
}
else
{
curBlockSize = 0x4000;
ret.AddRange(PER.EncodeConstraintWholeNumber(0xC1, 0, 0xFF));
}
for (int i = curItem; i < curBlockSize + curItem; i++)
{
ret.AddRange(EncodeSingleChar(items[i],perAlphaCon));
}
curItem += curBlockSize;
nCount -= curBlockSize;
}
if (nCount <= 0x7F)
{
ret.AddRange(PER.EncodeConstraintWholeNumber(nCount, 0, 0xFF));
for (int i = curItem; i < curItem + nCount; i++)
ret.AddRange(EncodeSingleChar(items[i], perAlphaCon));
return ret;
}
ret.Add(true);
ret.AddRange(PER.EncodeConstraintWholeNumber(nCount, 0, 0x7FFF));
for (int i = curItem; i < curItem + nCount; i++)
ret.AddRange(EncodeSingleChar(items[i], perAlphaCon));
return ret;
}
protected int BitsPerSingleChar(CharSet perAlphaCon)
{
int min;
int max;
min = 0;
max = AllowedCharSet.Length - 1;
if (perAlphaCon != null)
max = perAlphaCon.m_set.Count - 1;
if (min == max)
return 0;
return PER.GetNumberOfBitsForNonNegativeInteger((UInt64)(max - min));
}
public static CharSet Union(CharSet a, CharSet b)
{
CharSet c = a.Clone();
foreach (Char ch in b.m_set)
if (!c.m_set.Contains(ch))
c.m_set.Add(ch);
c.m_set.Sort();
return c;
}
public PERAlphabetAndSizeEffectiveConstraint(Char? min, Char? max, IStringType strType)
{
if (strType == null)
throw new Exception("Internal Error");
if (min ==null && max ==null)
throw new Exception("Internal Error");
if (min != null && max != null)
{
m_from = new CharSet(min.Value, max.Value);
}
else if (min != null && max == null)
{
m_from = new CharSet(min.Value, strType.AllowedCharSet[strType.AllowedCharSet.Length - 1]);
}
else if (min == null && max != null)
{
m_from = new CharSet(strType.AllowedCharSet[0], max.Value);
}
}
public PERAlphabetAndSizeEffectiveConstraint(List<Char> charSet)
{
m_from = new CharSet(charSet);
}